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Contact Us
- Contact Person : Mr. Xue aihong
- Company Name : Rugao Yaou Import & Export Trade Co., Ltd.
- Tel : 86-513-87635480
- Fax : 86-513-87632623
- Address : Jiangsu,Rugao,23# Haiyang North RD.
- Country/Region : China
- Zip : 226500
Spiral drill collar
Product Detailed
Related Categories:Mining Machinery Parts
Detailed Product Description
Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API spec 7-1 .Hard banding is optional at customers request.
Technical specification and parameters...........
Drill collar ranges O.D. (mm) | Elevator groove depth(mm) | Elevator groove length(mm) | Slip groove depth(mm) | Slip groove length(mm) |
101.6117.5 | 5.6 | 4.8 | 406 | 457 |
120.6142.9 | 6.4 | 4.8 | 406 | 457 |
146.0168.3 | 7.9 | 6.4 | 406 | 457 |
171.4219.1 | 9.5 | 6.4 | 406 | 457 |
≥222.2 | 11.1 | 6.4 | 406 | 457 |
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